CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Tax effect on unrealized holding gains (losses) on securities arising during the period	$ 790	$ (1,100)	$ 75	$ 234	$ 2,200
Income tax expense on reclassification adjustment for net gain on sale of securities included in net income	$ 16	$ 57	$ 149	$ 121	$ 215